آموزش PHP/MYSQL اندروید

<?php
$con=mysqli_connect("example.com","username","password");
$sql="CREATE DATABASE my_db";
if (mysqli_query($con,$sql))
{
   echo "Database my_db created successfully";
}
?>

<?php
$con=mysqli_connect("example.com","username","password","my_db");
$sql="CREATE TABLE table1(Username CHAR(30),Password CHAR(30),Role CHAR(30))";
if (mysqli_query($con,$sql))
{
   echo "Table have been created successfully";
}
?>

<?php
$con=mysqli_connect("example.com","username","password","my_db");
$sql="INSERT INTO table1 (FirstName, LastName, Age) VALUES ('admin', 'admin','adminstrator')";
if (mysqli_query($con,$sql))
{
   echo "Values have been inserted successfully";
}
?>

<?php
$con=mysqli_connect("example.com","username","password","database name");

if (mysqli_connect_errno($con))
{
   echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
$username = $_GET['username'];
$password = $_GET['password'];
$result = mysqli_query($con,"SELECT Role FROM table1 where Username='$username' and Password='$password'");
$row = mysqli_fetch_array($result);
$data = $row[0];

if($data){
echo $data;
}
mysqli_close($con);
?>

URL url = new URL(link);
HttpClient client = new DefaultHttpClient();
HttpGet request = new HttpGet();
request.setURI(new URI(link));

HttpResponse response = client.execute(request);
BufferedReader in = new BufferedReader
(new InputStreamReader(response.getEntity().getContent()));

URL url = new URL(link);
String data  = URLEncoder.encode("username", "UTF-8") 
+ "=" + URLEncoder.encode(username, "UTF-8");
data += "&" + URLEncoder.encode("password", "UTF-8") 
+ "=" + URLEncoder.encode(password, "UTF-8");
URLConnection conn = url.openConnection();

OutputStreamWriter wr = new OutputStreamWriter(conn.getOutputStream()); 
wr.write( data ); 
BufferedReader reader = new BufferedReader(new 
InputStreamReader(conn.getInputStream()));

<?php
$con=mysqli_connect("mysql10.000webhost.com","username","password","db_name");

if (mysqli_connect_errno($con))
{
   echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
$username = $_POST['username'];
$password = $_POST['password'];
$result = mysqli_query($con,"SELECT Role FROM table1 where 
Username='$username' and Password='$password'");
$row = mysqli_fetch_array($result);
$data = $row[0];

if($data){
echo $data;
}
mysqli_close($con);
?>

package com.example.phpmysql;

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.widget.EditText;
import android.widget.TextView;

public class MainActivity extends Activity {

   private EditText usernameField,passwordField;
   private TextView status,role,method;

   @Override 
   protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_main);
      
      usernameField = (EditText)findViewById(R.id.editText1);
      passwordField = (EditText)findViewById(R.id.editText2);
      
      status = (TextView)findViewById(R.id.textView6);
      role = (TextView)findViewById(R.id.textView7);
      method = (TextView)findViewById(R.id.textView9);
   }
   
   @Override
   public boolean onCreateOptionsMenu(Menu menu) {
      // Inflate the menu; this adds items to the action bar if it is present.
      getMenuInflater().inflate(R.menu.main, menu);
      return true;
   }
   
   public void login(View view){
      String username = usernameField.getText().toString();
      String password = passwordField.getText().toString();
      method.setText("Get Method");
      new SigninActivity(this,status,role,0).execute(username,password);

   }
   
   public void loginPost(View view){
      String username = usernameField.getText().toString();
      String password = passwordField.getText().toString();
      method.setText("Post Method");
      new SigninActivity(this,status,role,1).execute(username,password);
   }
}

package com.example.phpmysql;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.URI;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLEncoder;

import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;

import android.content.Context;
import android.os.AsyncTask;
import android.widget.TextView;

public class SigninActivity  extends AsyncTask<String,Void,String>{
   private TextView statusField,roleField;
   private Context context;
   private int byGetOrPost = 0; 
   
   //flag 0 means get and 1 means post.(By default it is get.)
   public SigninActivity(Context context,TextView statusField,TextView roleField,int flag) {
      this.context = context;
      this.statusField = statusField;
      this.roleField = roleField;
      byGetOrPost = flag;
   }
   
   protected void onPreExecute(){

   }
   
   @Override
   protected String doInBackground(String... arg0) {
      if(byGetOrPost == 0){ //means by Get Method
      
      try{
         String username = (String)arg0[0];
         String password = (String)arg0[1];
         String link = "http://myphpmysqlweb.hostei.com/login.php?username="+username+"& password="+password;
         
         URL url = new URL(link);
         HttpClient client = new DefaultHttpClient();
         HttpGet request = new HttpGet();
         request.setURI(new URI(link));
         HttpResponse response = client.execute(request);
         BufferedReader in = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));

           StringBuffer sb = new StringBuffer("");
           String line="";
           
           while ((line = in.readLine()) != null) {
              sb.append(line);
              break;
            }
            in.close();
            return sb.toString();
         }
         
         catch(Exception e){
            return new String("Exception: " + e.getMessage());
         }
      }
      else{
         try{
            String username = (String)arg0[0];
            String password = (String)arg0[1];
            
            String link="http://myphpmysqlweb.hostei.com/loginpost.php";
            String data  = URLEncoder.encode("username", "UTF-8") + "=" + URLEncoder.encode(username, "UTF-8");
            data += "&" + URLEncoder.encode("password", "UTF-8") + "=" + URLEncoder.encode(password, "UTF-8");
            
            URL url = new URL(link);
            URLConnection conn = url.openConnection(); 
            
            conn.setDoOutput(true); 
            OutputStreamWriter wr = new OutputStreamWriter(conn.getOutputStream()); 
            
            wr.write( data ); 
            wr.flush(); 
            
            BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
            
            StringBuilder sb = new StringBuilder();
            String line = null;
            
            // Read Server Response
            while((line = reader.readLine()) != null)
            {
               sb.append(line);
               break;
            }
            return sb.toString();
         }
         catch(Exception e){
            return new String("Exception: " + e.getMessage());
         }
      }
   }
   
   @Override
   protected void onPostExecute(String result){
      this.statusField.setText("Login Successful");
      this.roleField.setText(result);
   }
}

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
   xmlns:tools="http://schemas.android.com/tools"
   android:layout_width="match_parent"
   android:layout_height="match_parent"
   android:paddingBottom="@dimen/activity_vertical_margin"
   android:paddingLeft="@dimen/activity_horizontal_margin"
   android:paddingRight="@dimen/activity_horizontal_margin"
   android:paddingTop="@dimen/activity_vertical_margin"
   tools:context=".MainActivity" >

   <EditText
      android:id="@+id/editText2"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_alignRight="@+id/editText1"
      android:layout_below="@+id/editText1"
      android:layout_marginTop="25dp"
      android:ems="10"
      android:inputType="textPassword" >
   </EditText>

   <EditText
      android:id="@+id/editText1"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_alignParentRight="true"
      android:layout_alignParentTop="true"
      android:layout_marginTop="44dp"
      android:ems="10" >

   <requestFocus android:layout_width="wrap_content" />

   </EditText>

   <TextView
      android:id="@+id/textView1"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_alignBottom="@+id/editText1"
      android:layout_alignParentLeft="true"
      android:text="@string/Username" />

   <TextView
      android:id="@+id/textView3"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_alignParentTop="true"
      android:layout_centerHorizontal="true"
      android:text="@string/App"
      android:textAppearance="?android:attr/textAppearanceLarge" />

   <TextView
      android:id="@+id/textView7"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_alignBottom="@+id/textView5"
      android:layout_alignLeft="@+id/textView6"
      android:text="@string/Role"
      android:textAppearance="?android:attr/textAppearanceMedium"
      android:textSize="10sp" />

   <TextView
      android:id="@+id/textView5"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_below="@+id/textView6"
      android:layout_marginTop="27dp"
      android:layout_toLeftOf="@+id/editText1"
      android:text="@string/LoginRole" />
   <TextView
      android:id="@+id/textView8"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_above="@+id/textView6"
      android:layout_alignLeft="@+id/textView5"
      android:layout_marginBottom="27dp"
      android:text="@string/method" />

   <TextView
      android:id="@+id/textView4"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_alignLeft="@+id/textView8"
      android:layout_below="@+id/button1"
      android:layout_marginTop="86dp"
      android:text="@string/LoginStatus" />


   <TextView
      android:id="@+id/textView6"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_alignTop="@+id/textView4"
      android:layout_centerHorizontal="true"
      android:text="@string/Status"
      android:textAppearance="?android:attr/textAppearanceMedium"
      android:textSize="10sp" />

   <TextView
      android:id="@+id/textView9"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_alignBottom="@+id/textView8"
      android:layout_alignLeft="@+id/textView6"
      android:text="@string/Choose"
      android:textAppearance="?android:attr/textAppearanceMedium"
      android:textSize="10sp" />

   <Button
      android:id="@+id/button2"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_centerVertical="true"
      android:layout_toRightOf="@+id/textView6"
      android:onClick="loginPost"
      android:text="@string/LoginPost" />

   <Button
      android:id="@+id/button1"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_alignBaseline="@+id/button2"
      android:layout_alignBottom="@+id/button2"
      android:layout_alignLeft="@+id/textView2"
      android:onClick="login"
      android:text="@string/LoginGet" />

   <TextView
      android:id="@+id/textView2"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_alignBaseline="@+id/editText2"
      android:layout_alignBottom="@+id/editText2"
      android:layout_alignParentLeft="true"
      android:text="@string/Password" />

</RelativeLayout>

<?xml version="1.0" encoding="utf-8"?>
<resources>

   <string name="app_name">PHPMYSQL</string>
   <string name="action_settings">Settings</string>
   <string name="hello_world">Hello world!</string>
   <string name="Username">Username</string>
   <string name="Password">Password</string>
   <string name="LoginGet">Login - Get</string>
   <string name="LoginPost">Login - Post</string>
   <string name="App">Login Application</string>
   <string name="LoginStatus">Login Status</string>
   <string name="LoginRole">Login Role</string>
   <string name="Status">Not login</string>
   <string name="Role">Not assigned</string>
   <string name="method">Login Method</string>
   <string name="Choose">Choose Method</string>
    
</resources>

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
   package="com.example.phpmysql"
   android:versionCode="1"
   android:versionName="1.0" >

   <uses-sdk
      android:minSdkVersion="8"
      android:targetSdkVersion="17" />
      <uses-permission android:name="android.permission.INTERNET"/>
      <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
      
   <application
      android:allowBackup="true"
      android:icon="@drawable/ic_launcher"
      android:label="@string/app_name"
      android:theme="@style/AppTheme" >
      
      <activity
         android:name="com.example.phpmysql.MainActivity"
         android:label="@string/app_name" >
         
         <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
         </intent-filter>
         
      </activity>
      
   </application>
</manifest>